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AWG510 & AWG520 Service Manual
6-3
Table 6–1 lists the relative susceptibility of various classes of semiconductors.
Static voltages of 1 kV to 30 kV are common in unprotected environments.
Table 6-1: Relative susceptibility to staticĆdischarge damage
Semiconductor classes Relative susceptibility levels
1
MOS or CMOS microcircuits or discrete circuits, or linear
microcircuits with MOS inputs (most sensitive)
1
ECL 2
Schottky signal diodes 3
Schottky TTL 4
HighĆfrequency bipolar transistors 5
JFET 6
Linear microcircuits 7
LowĆpower Schottky TTL 8
TTL (least sensitive) 9
1
Voltage equivalent for levels (voltage discharged from a 100ĂpF capacitor through
resistance of 100 ohms):
1Ă=Ă100 to 500 V 6 = 600 to 800 V
2 = 200 to 500 V 7 = 400 to 1000 V (est.)
3 = 250 V 8 = 900 V
4 = 500 V 9 = 1200 V
5 = 400 to 600 V
Susceptibility to ESD